setting up wikis

Hi all,
I've been working on setting up a wiki for my mom's 90th bday party. It went pretty well until I tried to put a voci on it, that didn't work so well. It ended up being a blank black screen. IDK! Now I invited my 8 siblings to go on it and edit, so we'll see how that goes! It will be interesting to see if they are able to access it and if they like being able to organize family events this way.